<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/img/avatar_pic.jpeg" alt="">
      </div>

      <el-form ref="loginFormRef" :model="loginForm" label-width="70px" label-position="left"
               class="login_form" :rules="loginFormRules">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user" placeholder="admin"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-lock" placeholder="123456" type="password"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" round  @click="onSubmit">登录</el-button>
          <el-button round @click="resetForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    onSubmit () {
      console.log(this.loginForm)
      this.$refs.loginFormRef.validate(async isValid => {
        if (!isValid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('用户名或密码有误')
        }
        this.$message.success('登陆成功')

        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
    resetForm () {
      this.$refs.loginFormRef.resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
  .login_container {
    background-color: #2b4b6b;
    height: 100%;
  }
  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    .avatar_box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #e7e7e7;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }
  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 45px;
    box-sizing: border-box;
  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }

</style>
